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Article ID: 327086 - Last Review: May 21, 2007 - Revision: 1.3

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This article was previously published under Q327086


Under the following conditions, data that is written to a removable media storage device may be deleted from the device:
  1. Your Windows XP-based computer hibernates while a removable media storage device is inserted. Removable media storage devices may include Compact Flash, Memory Stick, SmartMedia, or Secure Digital memory devices.
  2. You remove the media, and then add data to it.
  3. You reinsert the media into the computer, and then resume from hibernation.
The data that was written to the device while the computer was hibernating may be missing when you insert the media into another computer or device (such as a digital camera).


This problem may occur when Windows caches the original data on the device while the computer is hibernating. Windows restores this original data back to the device when the computer resumes from hibernation.


To resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389  ( ) How to Obtain the Latest Windows XP Service Pack
The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
   Date         Time   Version      Size    File name
   01-Aug-2002  23:36  5.1.2600.51  44,416  Classpnp.sys


To work around this problem, use either of the following methods:
  • Resume the computer from hibernation before you reinsert the media.
  • After you resume from hibernation, use the Hotplug tool on the right side of the taskbar to stop the removable-media device, eject the media, and then reinsert the media.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows XP Service Pack 1.


For additional information about this problem with Microsoft Windows 2000, click the article number below to view the article in the Microsoft Knowledge Base:
327081  ( ) Data Added to Removable Media During Hibernation May Be Lost When You Resume Windows 2000

  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
kbhotfixserver kbqfe kbbug kbenv kbfix kboswin2000fix kbwinxpsp1fix KB327086
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